To avoid confusion: *http://kb.mozillazine.org/JavaScript_is_not_Java Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Firefox/Tools > Add-ons > Appearance). *Do NOT click the Reset button on the Safe Mode start window. *https://support.mozilla.org/kb/Safe+Mode *https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes ---- Your System Details List doesn't show the Java plugin. Do you see the Java plugin on the Firefox/Tools > Add-ons > Plugins page? Does Java work on the Java test page? *http://www.java.com/en/download/help/testvm.xml *http://www.java.com/en/download/installed.jsp You can find the latest Java version on the Oracle website. See Java Platform > Java SE 7U45 (JRE Download) *http://www.oracle.com/technetwork/java/javase/downloads/index.html *http://kb.mozillazine.org/Java